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	<h2> 提交记录 4600 </h2>
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					<th class="col-xs-2"> 用户 </th>
					<th class="col-xs-3"> 题目 </th>
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					<th class="col-xs-1"> 用时 </th>
					<th class="col-xs-1"> 内存 </th>
					<th class="col-xs-1"> 语言 </th>
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					<td style='font-size:13px'> <a href='/user/profile/kzoacn/index.html'> kzoacn </a> </td>
<td> <a href='/problem/1002i/index.html'> 1002i. 【模板题】多项式乘法 </a> </td>
<td> Accepted </td>
<td> 100 </td>
<td style='font-size:13px'> 23.948 ms </td>
<td style='font-size:13px'> 5 MB + 456 KB </td>
<td style='font-size:13px'> C++11 </td>
<td style='font-size:13px'> 7.32 KB </td>
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					<th class="col-xs-6"> 提交时间 </th>
					<th class="col-xs-6"> 评测时间 </th>
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					<td style='font-size:13px'> 2018-07-25 20:41:36 </td>
<td style='font-size:13px'> 2019-01-19 04:19:53 </td>
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				<label for="code"> 代码 </label>
				<pre style="background-color:white"><code class="cpp">#include &lt;bits/stdc++.h&gt;
using i64 = long long;
using u32 = unsigned;
using u64 = unsigned long long;
using f80 = long double;
const int BUFFER_SIZE = 1 &lt;&lt; 25 | 1;
struct InputOutputStream {
    char ibuf[BUFFER_SIZE], *s;
    char obuf[BUFFER_SIZE], *oh;
    InputOutputStream() : s(ibuf), oh(obuf) {
        ibuf[fread(ibuf, 1, BUFFER_SIZE, stdin)] = &#x27;\0&#x27;;
    }
    ~InputOutputStream() { fwrite(obuf, 1, oh - obuf, stdout); }
    template &lt;typename T&gt;
    inline InputOutputStream &amp;operator&gt;&gt;(T &amp;x) {
        while (!isdigit(*s)) s++;
        for (x = 0; isdigit(*s); s++) x = x * 10 + (*s ^ &#x27;0&#x27;);
        return *this;
    }
    template &lt;typename T&gt;
    inline InputOutputStream &amp;operator&lt;&lt;(T x) {
        static char buf[13];
        register char *top = buf;
        if (x != 0) {
            for (register int t; x;) {
                t = x / 10;
                *top++ = x - t * 10 + 48;
                x = t;
            }
            while (top != buf) *oh++ = *--top;
        } else {
            *oh++ = &#x27;0&#x27;;
        }
        *oh++ = &#x27; &#x27;;
        return *this;
    }
} io;
template &lt;u32 mod, u32 G&gt;
class UnsafeMod {
   private:
    static const int WORD_BITS = 8 * sizeof(u32);
    static constexpr u32 mulInv(u32 n, int e = 6, u32 x = 1) {
        return e == 0 ? x : mulInv(n, e - 1, x * (2 - x * n));
    }
   public:
    static constexpr u32 inv = mulInv(mod);
    static constexpr u32 r2 = -u64(mod) % mod;
    static constexpr int level = __builtin_ctzll(mod - 1);
    static_assert(inv * mod == 1, &quot;invalid 1/M modulo 2^@.&quot;);
    UnsafeMod() {}
    UnsafeMod(u32 n) : x(init(n)){};
    static inline u32 modulus() { return mod; }
    static inline u32 init(u32 w) { return reduce(u64(w) * r2); }
    static inline u32 reduce(const u64 w) {
        return u32(w &gt;&gt; WORD_BITS) + mod -
               u32((u64(u32(w) * inv) * mod) &gt;&gt; WORD_BITS);
    }
    static inline UnsafeMod omega() {
        return UnsafeMod(G).pow((mod - 1) &gt;&gt; level);
    }
    inline UnsafeMod &amp;operator+=(const UnsafeMod &amp;rhs) {
        x += rhs.x;
        return *this;
    }
    inline UnsafeMod &amp;operator-=(const UnsafeMod &amp;rhs) {
        x += 3 * mod - rhs.x;
        return *this;
    }
    inline UnsafeMod &amp;operator*=(const UnsafeMod &amp;rhs) {
        x = reduce(u64(x) * rhs.x);
        return *this;
    }
    inline UnsafeMod operator+(const UnsafeMod &amp;rhs) const {
        return UnsafeMod(*this) += rhs;
    }
    inline UnsafeMod operator-(const UnsafeMod &amp;rhs) const {
        return UnsafeMod(*this) -= rhs;
    }
    inline UnsafeMod operator*(const UnsafeMod &amp;rhs) const {
        return UnsafeMod(*this) *= rhs;
    }
    inline u32 get() const { return reduce(x) % mod; }
    inline void set(u32 n) { x = n; }
    inline UnsafeMod pow(u32 e) const {
        UnsafeMod ret = UnsafeMod(1);
        for (UnsafeMod base = *this; e; e &gt;&gt;= 1, base *= base)
            if (e &amp; 1) ret *= base;
        return ret;
    }
    inline UnsafeMod inverse() const { return pow(mod - 2); }
    u32 x;
};
const int MAXN = 3 * 1e6;
using Int = UnsafeMod&lt;104857601, 3&gt;;
Int f[MAXN], g[MAXN];
inline void transform(Int *f, int n, const Int *roots, const Int *iroots) {
    const int logn = __builtin_ctz(n), nh = n &gt;&gt; 1, lv = Int::level;
    const Int one = Int(1), imag = roots[lv - 2];
    Int dw[lv - 1];
    dw[0] = roots[lv - 3];
    for (int i = 1; i &lt; lv - 2; i++)
        dw[i] = dw[i - 1] * iroots[lv - 1 - i] * roots[lv - 3 - i];
    dw[lv - 2] = dw[lv - 3] * iroots[1];
    if (logn &amp; 1) {
        for (int i = 0; i &lt; nh; i++) {
            Int a = f[i], b = f[i + nh];
            f[i] = a + b;
            f[i + nh] = a - b;
        }
    }
    for (int e = logn &amp; ~1; e &gt;= 2; e -= 2) {
        const int m = 1 &lt;&lt; e, m4 = m &gt;&gt; 2;
        Int w2 = one;
        for (int i = 0; i &lt; n; i += m) {
            const Int w1 = w2 * w2, w3 = w1 * w2;
            for (int j = i; j &lt; i + m4; ++j) {
                Int a0 = f[j + m4 * 0] * one, a1 = f[j + m4 * 1] * w2;
                Int a2 = f[j + m4 * 2] * w1, a3 = f[j + m4 * 3] * w3;
                Int t02p = a0 + a2, t13p = a1 + a3;
                Int t02m = a0 - a2, t13m = (a1 - a3) * imag;
                f[j + m4 * 0] = t02p + t13p;
                f[j + m4 * 1] = t02p - t13p;
                f[j + m4 * 2] = t02m + t13m;
                f[j + m4 * 3] = t02m - t13m;
            }
            w2 *= dw[__builtin_ctz(~(i &gt;&gt; e))];
        }
    }
}
inline void itransform(Int *f, int n, const Int *roots, const Int *iroots) {
    const int logn = __builtin_ctz(n), nh = n &gt;&gt; 1, lv = Int::level;
    const Int one = Int(1), imag = iroots[lv - 2];
    Int dw[lv - 1];
    dw[0] = iroots[lv - 3];
    for (int i = 1; i &lt; lv - 2; i++)
        dw[i] = dw[i - 1] * roots[lv - 1 - i] * iroots[lv - 3 - i];
    dw[lv - 2] = dw[lv - 3] * roots[1];
    for (int e = 2; e &lt;= logn; e += 2) {
        const int m = 1 &lt;&lt; e, m4 = m &gt;&gt; 2;
        Int w2 = one;
        for (int i = 0; i &lt; n; i += m) {
            const Int w1 = w2 * w2, w3 = w1 * w2;
            for (int j = i; j &lt; i + m4; ++j) {
                Int a0 = f[j + m4 * 0], a1 = f[j + m4 * 1];
                Int a2 = f[j + m4 * 2], a3 = f[j + m4 * 3];
                Int t01p = a0 + a1, t23p = a2 + a3;
                Int t01m = a0 - a1, t23m = (a2 - a3) * imag;
                f[j + m4 * 0] = (t01p + t23p) * one;
                f[j + m4 * 2] = (t01p - t23p) * w1;
                f[j + m4 * 1] = (t01m + t23m) * w2;
                f[j + m4 * 3] = (t01m - t23m) * w3;
            }
            w2 *= dw[__builtin_ctz(~(i &gt;&gt; e))];
        }
    }
    if (logn &amp; 1) {
        for (int i = 0; i &lt; nh; i++) {
            Int a = f[i], b = f[i + nh];
            f[i] = a + b;
            f[i + nh] = a - b;
        }
    }
}
inline void convolve(Int *f, int s1, Int *g, int s2, bool cyclic = false) {
    const int s = cyclic ? std::max(s1, s2) : s1 + s2 - 1;
    const int size = 1 &lt;&lt; (31 - __builtin_clz(2 * s - 1));
    assert(size &lt;= (i64(1) &lt;&lt; Int::level));
    Int roots[Int::level], iroots[Int::level];
    roots[0] = Int::omega();
    for (int i = 1; i &lt; Int::level; i++) roots[i] = roots[i - 1] * roots[i - 1];
    iroots[0] = roots[0].inverse();
    for (int i = 1; i &lt; Int::level; i++)
        iroots[i] = iroots[i - 1] * iroots[i - 1];
    std::fill(f + s1, f + size, 0);
    transform(f, size, roots, iroots);
    const Int inv = Int(size).inverse();
    if (f == g &amp;&amp; s1 == s2) {
        for (int i = 0; i &lt; size; i++) f[i] *= f[i] * inv;
    } else {
        std::fill(g + s2, g + size, 0);
        transform(g, size, roots, iroots);
        for (int i = 0; i &lt; size; i++) f[i] *= g[i] * inv;
    }
    itransform(f, size, roots, iroots);
}
inline bool force(int n, int m) {
    register int l = std::__lg(n + m + 1);
    if ((unsigned long long)n * m &gt; 64ull * (1 &lt;&lt; l) * l) return false;
    static int a[1000000 + 1];
    static int b[1000000 + 1];
    for (register int i = 0; i &lt;= n; i++) io &gt;&gt; a[i];
    for (register int i = 0, x; i &lt;= m; i++) {
        io &gt;&gt; x;
        for (register int j = 0; j &lt;= n; j++) b[i + j] += x * a[j];
    }
    for (register int i = 0; i &lt; n + m + 1; i++) io &lt;&lt; b[i];
    return true;
}
int main() {
    int n, m;
    io &gt;&gt; n &gt;&gt; m;
    if (force(n, m)) return 0;
    for (int i = 0, x; i &lt;= n; i++) {
        io &gt;&gt; x;
        f[i] = x;
    }
    for (int i = 0, x; i &lt;= m; i++) {
        io &gt;&gt; x;
        g[i] = x;
    }
    convolve(f, n + 1, g, m + 1);
    for (int i = 0; i &lt;= n + m; i++) io &lt;&lt; f[i].get();
    return 0;
}</code></pre>
				<br />
				
				<label for="result"> 评测结果 </label><div class="row"><div class="col-xs-12"><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Compilation</b></td><td class="col-xs-2" style="vertical-align:middle">N/A</td><td class="col-xs-2" style="vertical-align:middle">N/A</td><td class="col-xs-2" style="vertical-align:middle">Compile OK</td><td class="col-xs-2" style="vertical-align:middle">Score: N/A</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_1" aria-expanded="false" aria-controls="detail_1">显示更多</a></td></tr></table></div><div class="collapse" id="detail_1"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>Compiling...
Compile success!
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #1</b></td><td class="col-xs-2" style="vertical-align:middle">31.01 us</td><td class="col-xs-2" style="vertical-align:middle">68 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 100</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_2" aria-expanded="false" aria-controls="detail_2">显示更多</a></td></tr></table></div><div class="collapse" id="detail_2"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.031010
mem_kb = 68
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #2</b></td><td class="col-xs-2" style="vertical-align:middle">23.708 ms</td><td class="col-xs-2" style="vertical-align:middle">5 MB + 296 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_3" aria-expanded="false" aria-controls="detail_3">显示更多</a></td></tr></table></div><div class="collapse" id="detail_3"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 23.708322
mem_kb = 5416
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #3</b></td><td class="col-xs-2" style="vertical-align:middle">1.072 ms</td><td class="col-xs-2" style="vertical-align:middle">1 MB + 188 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_4" aria-expanded="false" aria-controls="detail_4">显示更多</a></td></tr></table></div><div class="collapse" id="detail_4"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 1.071801
mem_kb = 1212
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #4</b></td><td class="col-xs-2" style="vertical-align:middle">1.166 ms</td><td class="col-xs-2" style="vertical-align:middle">1 MB + 560 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_5" aria-expanded="false" aria-controls="detail_5">显示更多</a></td></tr></table></div><div class="collapse" id="detail_5"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 1.166438
mem_kb = 1584
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #5</b></td><td class="col-xs-2" style="vertical-align:middle">29.02 us</td><td class="col-xs-2" style="vertical-align:middle">68 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_6" aria-expanded="false" aria-controls="detail_6">显示更多</a></td></tr></table></div><div class="collapse" id="detail_6"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.029024
mem_kb = 68
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #6</b></td><td class="col-xs-2" style="vertical-align:middle">28.79 us</td><td class="col-xs-2" style="vertical-align:middle">68 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_13" aria-expanded="false" aria-controls="detail_13">显示更多</a>
<a href="http://www.iis7.com" class="f74060afd306414680862e9602b6d0cc" target="_blank" style="display:inline-block;background-color:;color:#fff;padding:2px 5px;font-family:arial;font-size:12px;font-weight:bold;">iis7站长之家</a></td></tr></table></div><div class="collapse" id="detail_7"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.028792
mem_kb = 68
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #7</b></td><td class="col-xs-2" style="vertical-align:middle">28.72 us</td><td class="col-xs-2" style="vertical-align:middle">68 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_8" aria-expanded="false" aria-controls="detail_8">显示更多</a></td></tr></table></div><div class="collapse" id="detail_8"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.028716
mem_kb = 68
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #8</b></td><td class="col-xs-2" style="vertical-align:middle">22.86 ms</td><td class="col-xs-2" style="vertical-align:middle">4 MB + 712 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_9" aria-expanded="false" aria-controls="detail_9">显示更多</a></td></tr></table></div><div class="collapse" id="detail_9"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 22.859647
mem_kb = 4808
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #9</b></td><td class="col-xs-2" style="vertical-align:middle">22.835 ms</td><td class="col-xs-2" style="vertical-align:middle">4 MB + 712 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_10" aria-expanded="false" aria-controls="detail_10">显示更多</a></td></tr></table></div><div class="collapse" id="detail_10"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 22.835257
mem_kb = 4808
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #10</b></td><td class="col-xs-2" style="vertical-align:middle">21.926 ms</td><td class="col-xs-2" style="vertical-align:middle">4 MB + 108 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_11" aria-expanded="false" aria-controls="detail_11">显示更多</a></td></tr></table></div><div class="collapse" id="detail_11"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 21.925947
mem_kb = 4204
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #11</b></td><td class="col-xs-2" style="vertical-align:middle">23.948 ms</td><td class="col-xs-2" style="vertical-align:middle">5 MB + 456 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_12" aria-expanded="false" aria-controls="detail_12">显示更多</a></td></tr></table></div><div class="collapse" id="detail_12"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 23.947628
mem_kb = 5576
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #12</b></td><td class="col-xs-2" style="vertical-align:middle">20.369 ms</td><td class="col-xs-2" style="vertical-align:middle">3 MB + 216 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_13" aria-expanded="false" aria-controls="detail_13">显示更多</a></td></tr></table></div><div class="collapse" id="detail_13"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 20.369480
mem_kb = 3288
Correct Answer
</textarea></div></div><div class="alert alert-success"><div class="text-center row"><table class="table table-borderless" style="margin:0px"><tr><td class="col-xs-2" style="vertical-align:middle;padding-left:20px;padding-right:20px"><b>Subtask #1 Testcase #13</b></td><td class="col-xs-2" style="vertical-align:middle">28.88 us</td><td class="col-xs-2" style="vertical-align:middle">68 KB</td><td class="col-xs-2" style="vertical-align:middle">Accepted</td><td class="col-xs-2" style="vertical-align:middle">Score: 0</td><td class="col-xs-2" style="vertical-align:middle"><a data-toggle="collapse" href="#detail_14" aria-expanded="false" aria-controls="detail_14">显示更多</a></td></tr></table></div><div class="collapse" id="detail_14"><br /><textarea class="form-control" style="background-color: white" rows="8" readonly>verdict = Run Finished
time_ms = 0.028878
mem_kb = 68
Correct Answer
</textarea></div></div></div></div>
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